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प्रश्न
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
विकल्प
concave
convex
cylindrical
parabolic
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उत्तर
convex
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संबंधित प्रश्न
A student obtains a sharp image of the distant window (W) of the school laboratory on the screen (S) using the given concave mirror (M) to determine its focal length. Which of the following distances should he measure to get the focal length of the mirror?
Name the spherical mirror which can produce a real and diminished image of an object.
A lens forms a real image 3 cm high of an object 1 cm high. If the separation of object and image is 15 cm, find the focal length of the lens.
How is the focal length of a spherical mirror related to its radius
An optical device has been given to a student and he determines its focal length by focusing the image of the sun on a screen placed 24 cm from the device on the same side as the sun. Select the correct statement about the device.
(A) Convex mirror of focal length 12 cm
(B) Convex lens of focal length 24 cm
(C) Concave mirror of focal length 24 cm
(D) Convex lens of focal length 12 cm
If a spherical mirror breaks, what type of mirrors are the individual pieces?
Three mirrors are created from a single sphere. Which of the following - pole, centre of curvature, radius of curvature, principal axis - will be common to them and which will not be common?
Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.
Does the mirror mentioned in part (b) form real image for all locations of the object?
Assertion: Incident ray is directed towards the centre of curvature of spherical mirror. After reflection it retraces its path.
Reason: Angle of incidence (i) = Angle of reflection (r) = 0°
